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Student Researchers Describe Immune Response Of Sea Stars With Wasting Disease

After a devastating die-off of sea stars three years ago that stretched from the coasts of Alaska all the way down to waters off Baja, California, marine biologists began searching for the cause. Most agreed that sea star wasting disease was to blame, but there is still little knowledge of the virus behind the disease and which of its quirks led to such quick deaths for so many sea stars. In response to the mass die-off, an investigation completed in part by a group of students at the University of Washington in the summer of 2014 may answer some questions. The results of their work, recently published in the open-access scientific journal PLOS ONE , detail findings that they say can serve as the basis for a larger discovery on sea star wasting disease.

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Flood Warning Systems

Chapter Overview: Flood Warning A Real-Time Solution Streamflow Measurements Typical Flood Warning System Monitoring Location Data Management Quality Assurance Recommended Equipment Why Monitoring Matters While some areas are more prone to flooding than others, the establishment of flood warning systems near any major waterway or body of water provides critical information that can protect property and save lives. Of course, the most effective flood warning methods extend beyond the installation of gages and telemetry equipment, and employ qualified staff and carefully designed procedures to provide the earliest warning about whether a flood should be expected, when it will occur, and how severe it will be.

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USFWS Scientists Chart Comeback Of Lake Ontario’s Lake Sturgeon

In Lake Ontario, as well as some of the other Great Lakes, lake sturgeon are making a comeback. Fisheries biologists say that’s good news in light of some of the services they provide to ecosystems they live in, including chomping away at invasive mussels that live on the lake’s bed. Part of the fish’s successful rebound is owed to data, with studies of their life cycles helping scientists learn where they should focus restoration efforts. In Lake Ontario, one large effort to support sturgeon’s comeback involves tracking their movements throughout the lower Niagara River and the lake. Overseen by scientists at the U.S. Fish and Wildlife Service (USFWS), it is entering its 5th year, according to the Lockport Union-Sun & Journal .

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Photos: World's Five Deepest Lakes

Water is an amazing thing. It can freeze into masses of ice and float or turn into steam and drift away. But perhaps one of water’s most interesting feats is its ability to conceal. Think about it: Just standing on a shoreline, looking over a water body, there’s no way of knowing what’s under the surface at any certain point. All we can see are waves -- what do the depths hold? With that sense of wonder in mind, we’ve put together a photographic list of the world’s five deepest lakes. All of these water bodies are more than 2,700 feet deep at maximum and full of mysteries just waiting for scientists to solve. They are beautiful examples of water’s power to tuck things out of site, and we’ve listed them in order from most shallow to deepest (click to enlarge): 5.

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